Fix for index outside the bounds.

tests/goto_statement.aer

@@ -50,7 +50,7 @@ class Test {
 			print($headers[$pos], "\n");
 			cIterator: {
 				print(" ", $headers[$pos][$c], "\n");
-				if(!($headers[$pos][++$c])) {
+				if(strlen($headers[$pos]) <= ++$c) {
 					goto cIteratorExit;
 				}
 				goto cIterator;